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complement of inner hair cells.
Outer hair cells are
not in such good shape,
but they're present throughout
the cochlea in this right side.
Now, also on here are
graphs of the nerve fibers.
Those are these little
thread-like stained elements
here that appear very
nicely in this osmium stain,
and they're pretty much
intact through the cochlea.
Maybe in places here where the
hair cell loss is really bad,
some of the nerve
fibers are gone,
and that's indicated by
this interruption here.
But this is another
example where
you can have whatever damaged
this fellow's hair cells, left
the nerve fibers
relatively intact.
And this offers some
hope to somebody
who wants to install a
prosthesis like the cochlear
implant and stimulate the
remaining nerve fiber just
because they're
going to stick around
even if a lot of the
hair cells are gone.
So this subject, as I said,
was an enthusiastic hunter,
and a he was right-handed.
And as you can see
right here, this
is a top view of a
person firing a rifle.
The left ear of the
subject is pointed
toward the tip of
the gun, and that's
where the bullet
emerges, and that's
where the shock wave of
the rifle, when it fires,
comes out.
This is a modern rifle,
not a flintlock rifle
where you have a lot of smoke
and sound coming out down here.
Most of the sound comes
at the tip of the gun.
And this subject's left ear
is pointed right to that
and has taken the
brunt of the blast
in terms of the
loss of hair cells.
The right ear of the
subject is pointed more away
from the tip of the